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BQ27742YZFR-G1 The Texas Instruments BQ27742YZFR-G1 is a single-cell Li-Ion battery fuel gauge with integrated protection. It supports HDQ and I2C communication interfaces.
Mfr Part #:

BQ27742YZFR-G1

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ27742YZFR-G1 is a single-cell Li-Ion battery fuel gauge with integrated protection. It supports HDQ and I2C communication interfaces.
✓ Total Stock: 71,324 pcs
$ Price Range: $1.34

BQ27742YZFR-G1 Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
25,829 pcs
On Request
25829 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
24,000 pcs
On Request
24000 pcs On Request 1 On Request On Request 21+ On Request On Request
PROSOFT ELECTRONICS ✓
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19,500 pcs
On Request
19500 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
1,995 pcs
On Request
1995 pcs On Request 1 On Request On Request 21 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BQ27742YZFR-G1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Features
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
SVHC Present
Supplier Device Package
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BQ27742YZFR-G1 Description

Short technical summary and product information.

The BQ27742YZFR-G1 from Texas Instruments is a single-cell Li-Ion battery fuel gauge with integrated protection, designed for battery management applications. This IC utilizes the patented Impedance Track™ algorithm for accurate fuel gauging, modeling the battery discharge curve to predict time-to-empty. It automatically adjusts for battery aging, self-discharge, and temperature effects.

 

The device features integrated hardware-based safety and protection functions, including overvoltage (OVP), undervoltage (UVP), overcurrent in charge (OCC), overcurrent in discharge (OCD), and short-circuit in discharge (SCD). It communicates with host systems via HDQ and I2C interface formats.

 

Key electrical specifications include a battery capacity range from 200 mAh to 16000 mAh and a sense resistor range of 5 mOhm to 20 mOhm. The operating temperature range is -40°C to 85°C. The BQ27742YZFR-G1 is supplied in a compact 15-ball DSBGA package, suitable for surface mount applications.

 

This fuel gauge also provides external and internal temperature sensors for battery temperature reporting, lifetime and current data logging, and 64 bytes of non-volatile scratch pad flash memory. It includes SHA-1 authentication capability for enhanced security.

BQ27742YZFR-G1 Quick Information

Product Type: Battery Fuel Gauge IC
Series: BQ27742-G1
Canonical Name: BQ27742YZFR-G1 Single-Cell Li-Ion Battery Fuel Gauge with Integrated Protection
Subcategory: Fuel Gauges

BQ27742YZFR-G1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ27742YZFR-G1 Estimated Pricing

Qty Low High
1+ $1.34 $1.34

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ27742YZFR-G1 Features

  • Single-cell Li-Ion fuel gauge with protection.
  • Impedance Track™ algorithm for accurate gauging.
  • Integrated hardware protection features.
  • HDQ and I2C communication interfaces.
  • Compact 15-DSBGA package.

BQ27742YZFR-G1 Applications

  • Battery management systems.
  • Portable electronic devices.
  • Power tool battery packs.
  • Medical devices.

BQ27742YZFR-G1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the BQ27742YZFR-G1?

-40°C to 85°C

What battery chemistries does the BQ27742YZFR-G1 support?

Lithium Ion

How many series cells can the BQ27742YZFR-G1 manage?

1

What communication interfaces are available on the BQ27742YZFR-G1?

HDQ, I2C

What is the package type for the BQ27742YZFR-G1?

15-DSBGA

What are the fault protection features of the BQ27742YZFR-G1?

Over Current, Over/Under Voltage, Short Circuit

What is the minimum battery capacity supported by the BQ27742YZFR-G1?

200 mAh

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